srt-4 exhaust

[dffusion20]

Does anybody know how these cars make the sound they do? I am a huge fan, and not that I dont love the sound of a nasty exhaust on an Eclipse; just wondering. Also, I have a bud who has one and his turbo spool is ridiculous compared to mine, how come? This question is kinda vain, I know jw.

 

[p1s70np0w3r]

If you know how to do exhaust you can make this happen as far as the open dump wastegate thats easy to do.

 

[Hideki]

SRT-4 is so loud because they have no muffler

 

[JusMX141]

Wrong; they have a mid-mount muffler. SOME SRT4's roll around with no muffler, but not all.

If you're after the deep rumble, look into putting a short glasspack or resonator not far behind the cat of your car (or where the cat would be located if you don't have a cat), then run the rest of the piping 3" to the rear of the car with no other muffler.

It won't sound identical to an SRT4 because there are too many other variables (compression, firing order, displacement) but your exhaust will be built under the same principal.

 

[p1s70np0w3r]

Wrong; they have a mid-mount muffler. SOME SRT4's roll around with no muffler, but not all.

If you're after the deep rumble, look into putting a short glasspack or resonator not far behind the cat of your car (or where the cat would be located if you don't have a cat), then run the rest of the piping 3" to the rear of the car with no other muffler.

It won't sound identical to an SRT4 because there are too many other variables (compression, firing order, displacement) but your exhaust will be built under the same principal.

No its cause the have mad JDM type r vtac on there intivic civic...

Well maybe its vinos or mivec....

Sike, he hit the nail on the head with that... or Just run a 3 in turbo back exhaust with no cat.

 

[Tecni]

sorry, not a big fan of the SRT4 sound. Maybe because I worked on so many of them but they sound like a damn truck.

 

[JusMX141]

Also, I have a bud who has one and his turbo spool is ridiculous compared to mine, how come? This question is kinda vain, I know jw.

400 more cc's of displacement, lightning-spool of the TD04-16G. Need I say more?

 

[90laserRSfwd]

I knew this would come up on tuners soon.....

 

[Twinky-Ninja]

Engine design plays a huge part in exhaust note.. This is the reason you can usually hear a Honda, WRX, SRT-4 without even seeing it. As far as the SRT, it doesn't have a muffler, it has a cat and mid mounted resonator. It can be argued that the resonator is a muffler, but dodge states that it isn't. Also, the srt has a maze of piping to accommodate it's dual exhaust.

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Where does the cheese go?

 

[xavier3jr]

I was about to post a topic on a SRT-4 exhaust, so ill just ask it here. Do they get any kind of advantage for a duel exhaust. Makes no sence to me a turbo car wants no back preasure correct? Why put the extra bends in the pipes just to have duel exhaust unless there's some kind of gain.

 

[Imback]

No there is no advantage to a dual set up.

 

[JusMX141]

Do they get any kind of advantage for a duel exhaust?

Yes.....BLING!!

 

[dsmzoom]

No 4cyl should run a dual exhaust.

 

[90laserRSfwd]

Do they get any kind of advantage for a duel exhaust. Makes no sence to me a turbo car wants no back preasure correct?

Yes, thats correct. The less back pressure a turbo car has the better it "breathes"

 

[dffusion20]

thanks everyone for the help

 

[toxicClaw]

Wrong; they have a mid-mount muffler. SOME SRT4's roll around with no muffler, but not all.

If you're after the deep rumble, look into putting a short glasspack or resonator not far behind the cat of your car (or where the cat would be located if you don't have a cat), then run the rest of the piping 3" to the rear of the car with no other muffler.

It won't sound identical to an SRT4 because there are too many other variables (compression, firing order, displacement) but your exhaust will be built under the same principal.

All SRT-4s Come Stock with 2 resonators and NO MUFFLER....... I own a 04 srt-4. I now have a mopar-borla CB on it now Just 2 pipes sticking out the back that split at the axle from a single pipe 1/4 inch bigger than stock and only one Resonator and a deeper sound. Im gonna put the stock srt cb on my 97 talon I'll let you know how it turns out If there is a srt with a muffler Some did it to Kill the pops and bangs !

 

[toxicClaw]

No 4cyl should run a dual exhaust.

they split at the rear axle Its one pipe from the turbo back to cat 2 resonators then after the rear axle they split. Im going Mopar stage3 so Im gonna try sticking the stock srt turbo and mani on a 420 as well and see what happens......

 

[Archametes]

You can fit the SRT4 turbo on a 420a but it's kinda harder to do since the block is 180 degrees opposite from the Dodge. Well mostly they're the same (420a eclipse compared to a ECB neon 2.0 motor) The SRT4 runs a 2.4 liter instead of the 2.0 found in most all other Neons. Also you can source an SRT4 motor by taking a 2.4 dodge caravan motor and replacing the internals, add the SRT4 turbo and PT cruiser driveshafts and you can turn a 1st gen Neon into an SRT4 as well...Its actually NOT exactly THAT easy but it's the general idea of it. I would assume it would be a similar procedure to get the same idea out of a 420a eclipse. Custom make the motor mounts and I don't see why you can't make it happen.....

Sorry, my project before my Talon was a 1st gen '96 Dodge Neon Coupe. By the time I was satisfied with the car I was pushing 320 WHP! The biggest add-on was the turbo and ALOT of motor work. I blew the piston rings after driving it for about 2 years very enjoyably and then sold it and got my Talon...

 

[toxicClaw]

Cool. ya i had a 1g neon too you can build 2.4 dohc for nt 2g dsms with any of the dsm cloud cars that had the 2.4 you take our 420a head, Put it on the 2.4 block with srt-4 pistons and rods. there might be a few other little mods as well but just another way to do it. I wont be running much over 5psi on a stock 420a & t350 if i do get it to work I think bad things would happen......... There is someone on here that has done a srt swap hes got a few bugs to work out but its pretty dam cool.........

 

[dsmcolt969]

yes lots of factors into the sound but most of the popping is the lack of a true muffler as previously stated and the other it the injectors stay on for a tiny bit after you let off the throttle to help prevent lean conditions. but with my exhaust 3 " turbo back with one muffler dumped right before the gas tank it sounds somewhat to an srt-4 under boost

 

[napkinthief]

Just bolt up a 16g, get a turbo back exhaust with a resonator right after your cat, and a short muffler. If you have welding skills, you can have it done with under a few hundred. All parts can be had on ebay including the piping. You will need 2.5" or bigger to get loud.

Your car will never sound the same as a dodge.....its a mitsu. Your car will sound sexier.


Oh, and if you want it to backfire and make the popping, just tune it a little richer and waste all your gas.

 

[DRAGIN]

Engine design plays a huge part in exhaust note.. This is the reason you can usually hear a Honda, WRX, SRT-4 without even seeing it. As far as the SRT, it doesn't have a muffler, it has a cat and mid mounted resonator. It can be argued that the resonator is a muffler, but dodge states that it isn't. Also, the srt has a maze of piping to accommodate it's dual exhaust.

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Where does the cheese go?

Is this why my 94 Supra TT with Blitz Nur-Spec R exhaust sounded like it was about to open up a worm hole when I mashed the throttle? Gawd I miss that car and that distinct sound.

 

[SpiralOut]

I personally LOVE the sound of the SRT4. They sound like bigg ass trucks! It's so mean sounding.

 

[squeak104]

If I remember right from what my friend had told me you can easily fit a stock srt-4 manifold and turbo on a stock 420a head the only downside is hood clearance and exhaust of course. A 14b, 16G, etc will bolt on to the stock 420a manifold through 2 bolts and he ran this for a couple years no problem.

And the reason an srt-4 makes the popping noise beyond the mufflerless exhaust is dodge programmed the ecu to dribble fuel in when the throttle is closed to cool combustion chambers and on re-acceleration, there is already extra fuel so the accel enrichment won't have any noticeable delay. That information taken from the srtforums.

Also if you step up in staged ecus the noise gets louder and more constant, showing its something in the ecu programming. That and when I ride in my friends srt-4 when he lets of the throttle you can watch the wideband hang around 14-15 range before it goes to dead lean for normal decel. When it goes lean the noise stops.

 

[TheBigPhantom]

If you want POPs and Bangs 2g guys do what I did and you'll get an exhaust that sounds nicer than an SRT4's

Port the hell out of you're 02 housing I run dump you dont have to but it sounds meaner.
Then run a TRUE 3" downpipe down with NO CAT then run 3" PIPING ALL THE WAY To just one Muffler or Resonator.

If you're feeling brave just forget the muffler and do 3" to the end

It sounds orgasmic =]